TNS Astronomical Transient Report No. 255943 [ 2025TNSTR1889....1J ]
Date Received (UTC): 2025-05-22 14:01:48
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
S. Jurado, F.E. Bauer, F. Forster, , G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: SN 2025lgu
Discoverer internal name: ZTF25aaqyygm
Coordinates (J2000): RA = 19:22:36.139 (290.65057785469) DEC = +75:35:22.48 (75.589578635589)
Discovery date: 2025-05-21 08:12:26.001 (JD=2460816.8419676)
Remarks: Early SN candidate (g-rise > 0.11+-0.02 mag/day, r-rise > 0.14+-0.02 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aaqyygm
Photometry
Discovery (first detection):
Discovery date: 2025-05-21 08:12:26.001
Flux: 19.386 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-05-16 10:54:52
Limiting flux: 19.7734 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025lgu
Date Received (UTC): 2025-05-22 14:01:48
Date made public:
Sender: ALeRCE
Reporting Group: ALeRCE Discovery Data Source: ZTF
S. Jurado, F.E. Bauer, F. Forster, , G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker report/s the discovery of a new astronomical transient.
IAU Designation: SN 2025lgu
Discoverer internal name: ZTF25aaqyygm
Coordinates (J2000): RA = 19:22:36.139 (290.65057785469) DEC = +75:35:22.48 (75.589578635589)
Discovery date: 2025-05-21 08:12:26.001 (JD=2460816.8419676)
Remarks: Early SN candidate (g-rise > 0.11+-0.02 mag/day, r-rise > 0.14+-0.02 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aaqyygm
Photometry
Discovery (first detection):
Discovery date: 2025-05-21 08:12:26.001
Flux: 19.386 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Last non-detection:
Last non-detection date: 2025-05-16 10:54:52
Limiting flux: 19.7734 ABMag
Filter: g-ZTF
Instrument: ZTF-Cam
Telescope: Palomar 1.2m Oschin
Remarks: Data provided by ZTF
Details of the new object can be viewed here: https://www.wis-tns.org/object/2025lgu